Baqiyatallah University of Medical science is a public and special medical university in Tehran, Iran.The BMSU was founded in 1994 as the primary medical institution for the Army of the Guardians of the Islamic Revolution . The BMSU as well as the Institute of Research for Military Medicine is operated by the IRGC and currently trains students up to Ph.D.The BMSU operates three hospitals, among them the large Baqiyatallah Hospital near Vanak, Tehran, as well as a dental hospital. Wikipedia.
Khedmat H.,Baqiyatallah Medical Sciences University
Saudi journal of kidney diseases and transplantation : an official publication of the Saudi Center for Organ Transplantation, Saudi Arabia | Year: 2013
Post-transplantation lymphoproliferative disorders (PTLD) localized to the central nervous system (CNS) is a rare but potentially fatal side-effect of immunosuppression for organ transplantation. Till now, to the best of our knowledge, the total number of such cases reported worldwide is less than 100. In this survey, we collected the data of PTLD localized to the CNS (CNS-PTLD) and compared this data with other PTLD patients with localizations to other areas serving as the control group. A comprehensive search was performed for studies reporting CNS-PTLD data in the Pubmed and Google scholar search engines. Finally, international data from 21 different studies were included in the analysis. Overall, 367 patients were entered into analysis. Organ recipients with CNS-PTLD had comparable gender make up, lymphoma cell types, Epstein-Barr virus infection rate, remission and mortality rates, with PTLD patients having other localizations. Multiorgan involvement as well as disseminated lymphoma were significantly more prevalent in the control group (P <0.05). At the last follow-up, 192 (60%) patients were dead (47 missing data). Irrespective of whether the overall death or only death due to PTLD was used as the final outcome, we found that the survival rates were similar for patients of the two groups (P = 0.895). Renal transplant recipients are at greater risk for developing CNS involvement by PTLD, while heart and liver recipients represent significant lower risks for the same. This study showed that PTLD patients who had CNS presentation have quite a comparable outcome compared with those with other areas of localization. However, further prospective studies are needed for reaffirming our findings.
Khedmat H.,Baqiyatallah Medical Sciences University
Annals of Transplantation | Year: 2010
Background: Post-transplant lymphoproliferative disorders (PTLDs) can occur within the allograft, representing a differential diagnosis for an acute rejection episode; in this study, we collected data from PTLD patients involving kidney allografts, and compared their characteristics with other renal transplant patients from the same centers who developed PTLDs localized elsewhere. Material/Methods: A comprehensive search was made by Pubmed and Google Scholar for reports of lymphoproliferative disorders after renal transplantation. Data from 17 studies were included into analysis. Having at least 1 patient with renal allograft involvement by PTLD was inclusion criterion. Data for patients was collected by use of a standard questionnaire. Results: PTLD complicated renal allograft in 46 (37%) of our study population. Renal transplant recipients with allograft localization of PTLD had better survival than other PTLD patients unless they developed multi-organ involvement (p=0.007). Five-year survival rate was 73% for graft PTLD and 42% for other localizations. Graft PTLD patients had shorter time from transplant to PTLD (p=0.01) and were more likely to present as polyclonal and polymorph in their histological evaluations (p<0.05). Conclusions: Renal transplant recipients who develop allograft dysfunction during the early post-transplantation period should get full evaluations for a potential PTLD development at their allograft site. Before development of multi-organ involvement allograft PTLD in renal transplant patients has a benign behavior; therefore it is crucial to evaluate renal recipients with initial symptoms of PTLDs. © Ann Transplant.
Aalaei-Andabili S.H.,Baqiyatallah Medical Sciences University |
Alavian S.M.,Baqiyatallah Medical Sciences University
Vaccine | Year: 2012
Introduction: Association of increased levels of CD4+CD25+ regulatory T cells (Tregs) with impaired immune response and hepatitis B infection progression has been proposed. For determination of Tregs various effects among hepatitis B infected patients we performed a meta-analysis of the available literature. Methods: Current content, abstract books of congresses, and electronic databases were searched. Critical appraisal has been done. According to the result of heterogeneity tests (Q, I-squared, and Tau-squared), we used fix/random model for analysis. Result: Twelve studies that fulfilled inclusion criteria entered to analysis. Pooled estimation of reported results showed that CD4+CD25+ Tregs have higher expression of forkhead box P3 (FoxP3) versus CD4+CD25- Tregs, odd ratio (OR) was 31.49 (95% Confidence Intervals (CI): 5.09-194.94). Tregs level among chronic hepatitis B (CHB) patients was 77% (OR=1.77 95% CI: 1.43-2.19) higher than healthy controls. Patients with more than 10,000,000 HBV copies/ml have higher level of Tregs (OR: 1.24 95% CI: 1.08-1.41) comparing subjects with less than that. CHB patients have increased level of Tregs versus acute hepatitis B patients (OR=1.33 95% CI: 1.16-1.52). CD8 cells activity increased significantly after depletion of circulating Tregs (OR=1.93 CI: 1.37-2.73). Also, Tregs reduce response to treatment and non-responders to INF-α had higher level of Tregs (OR=1.60 95% CI: 1.09-2.36). In addition, Tregs increase risk of hepatocellular carcinoma (HCC) (OR=1.36 95%CI: 1.10-1.69). Conclusion: Tregs influence HBV infected patients in various states. Tregs determine the disease prognosis by leading to infection progression and impairing immune response. So, Tregs are therapeutic target for immunotherapy of HBV infection. © 2012 Elsevier Ltd.
Ghamar-Chehreh M.E.,Baqiyatallah Medical Sciences University
Saudi journal of kidney diseases and transplantation : an official publication of the Saudi Center for Organ Transplantation, Saudi Arabia | Year: 2014
Despite the introduction of strict hygienic precautions preventing infection spread of hepatitis C virus (HCV) in dialysis settings, this infection is still prevalent among dialysis patients due to procedures making the patients vulnerable to infection through blood contamination. Treatment of HCV infection in dialysis patients is also less successful than that in the non-uremic population due to contraindication of using ribavirin, a main drug, in the infected patients. In this review article we aim to investigate the feasibility of the current antiviral therapies in dialysis patients infected with HCV infection.
Panahi Y.,Baqiyatallah Medical Sciences University
Current pharmaceutical biotechnology | Year: 2015
Premature ejaculation (PE) is an important and common sexual issue in male adults, since its etiology is still unknown. There are many suggested treatments such as paroxetine, clomipramine, dapoxetine, tramadol and topical agents; all of them have stigma or considerable side effects. Therefore, present study aimed to examine the effect of on-demand caffeine consumption on treating patients with PE. In this double blind RCT, 40 otherwise healthy individuals with PE were allocated into 2 groups of caffeine and placebo group. The caffeine group received 100 mg encapsulated caffeine for 3 weeks, 2 hours prior to each intercourse. Intravaginal ejaculation latency time (IELT) and index of sexual satisfaction (ISS) were measured before and after treatment in both groups. Suitable statistical analysis was performed. (Registration code: IRCT2013091614677N1). Mean age of the participants was 39.88±8.72 years. No significant difference was found between pre-treatment and post-treatment values of both IELT and ISS in the placebo group, but significant difference was seen in post treatment values between our two groups and pre-treatment and post-treatment values of the caffeine group (IELT: 144s vs 312s, p<0.001 and ISS: 77 vs 97, p<0.001; respectively). Furthermore, high significant correlation was found in post-treatment values (r>0.07, p<0.05). There are negligible scientific evidences regarding the beneficial effects of caffeine on several aspects of sexual life, which makes comparison impossible. Considering the fact that caffeine is a well-known and widely used drug in common disease, using this compound will not result in any stigma. Our study demonstrates that 100mg on-demand caffeine can significantly increase both IELT and ISS. Furthermore, the slope of these increasings is correlated with each other. More studies are needed to make stronger conclusions.
Cheraghali A.M.,Baqiyatallah Medical Sciences University
Iranian Journal of Public Health | Year: 2012
Despite importance of blood transfusion services as life saving procedures, some countries are unable to meet their national requirements for blood and blood components in a timely manner. Since establishment of Iran Blood Transfusion Organization (IBTO) in 1974 as an integral part of national health system, Iran has experienced a drastic improvement both in availability and safety of blood and blood products. Iran now has not only reached to a 100% non remunerated voluntary blood donation but also secured a national self sufficiency of blood and blood components. Efforts of IBTO as the sole player of transfusion medicines in Iran enabled the country for timely providing of life saving blood transfusion services for all Iranian patients in need of such services. In order to meet the country's demand in 2011 about 2 million units of whole blood for a population of about 75 million collected by IBTO. This indicates 26.2 donations per 1000 population. Currently about 94% of blood donors in Iran are 25-35 years old males and contribution of female donors in blood donation is less than 6%. IBTO screen all donated blood for important transfusion transmissible infections such as HBV, HIV, HCV and syphilis. Prevalence of HBsAg, HCV and HIV in donated blood in IBTO in 2011 was 0.20%, 0.06% and 0.004% respectively.
Ranjbar R.,Baqiyatallah Medical Sciences University
The new microbiologica | Year: 2014
Microbial typing is often employed to determine the source and routes of infections, confirm or rule out outbreaks, trace cross-transmission of healthcare-associated pathogens, recognize virulent strains and evaluate the effectiveness of control measures. Conventional microbial typing methods have occasionally been useful in describing the epidemiology of infectious diseases. However, these methods are generally considered too variable, labour intensive and time-consuming to be of practical value in epidemiological investigations. Moreover, these approaches have proved to be insufficiently discriminatory and poorly reproducible. DNA-based typing methods rely on the analysis of the genetic material of a microorganism. In recent years, several methods have been introduced and developed for investigation of the molecular epidemiology of microbial pathogens. Each of them has advantages and limitations that make them useful in some studies and restrictive in others. The choice of a molecular typing method therefore will depend on the skill level and resources of the laboratory and the aim and scale of the investigation. This study reviews the most popular DNA-based molecular typing methods used in the epidemiology of bacterial pathogens together with their advantages and limitations.
Mirnejad R.,Baqiyatallah Medical Sciences University
Asian Pacific journal of tropical medicine | Year: 2012
To evaluate simultaneous detection and differentiates of Brucella abortus (B. abortus) and Brucella melitensis (B. melitensis) through the combinatorial PCR method. This study was designed using three primers that could simultaneously identify and differentiate two major species of pathogenic Brucella in humans and animals. Identification and differentiation of each species using the size of the PCR product were determined. To determine the specificity of the method, bacteria close to the genus Brucella were used. Finally, to confirm PCR products, In addition to the products sequence, RFLP was performed on PCR products using restriction enzymes. The method of optimized combinatorial PCR in this study could simultaneously detect and differentiate B. abortus and B. melitensis with high specificity and sensitivity in clinical samples. Differentiation of species is based on the resulting bands; therefore, the band 494 bp for B. abortus and 733 bp for B. melitensis were obtained. RFLP and sequencing results confirmed PCR results. The results of this study shows that without routine diagnostic methods such as culture and serology tests, using the molecular method of combinatorial PCR, important species of Brucella can be simultaneously identified and differentiated in clinical samples. Copyright © 2012 Hainan Medical College. Published by Elsevier B.V. All rights reserved.
Panahi Y.,Baqiyatallah Medical Sciences University
Skinmed | Year: 2013
Inflammation is a key component in the pathogenesis of sulfur mustard (SM)-induced skin complications. Here, the levels of interleukin (IL) -2, IL-4, IL-6, and IL-10 were evaluated in patients with chronic SM-induced complications. Seventy-four serum samples were collected from SM-injured veterans (SM group; n = 37) and nonchemically injured patients (control group; n = 37) with skin pruritus. The levels of IL-2, IL-4, IL-6, and IL-10 were evaluated by sandwich enzyme-linked immunosorbant assay technique in both nil and mitogen medium. No significant difference was found in pruritus score between SM (74.16 +/- 5.93) and control (74.48 +/- 6.15) groups (P > .05). The mean serum concentrations of IL-2 and IL-6 were found to be significantly elevated in the control compared with the SM group (P < .05). However, no significant difference was observed between the study groups regarding serum levels of IL-4 and IL-10 (P > .05). Serum IL-2 (in both SM and control groups) and IL-6 (in the control group) concentrations were significantly correlated with pruritus score while no significant association was found for IL-4 and IL-10. Serum concentrations of IL-2, IL-6, and IL-10 are significantly decreased in SM-exposed patients with chronic pruritus. Such alterations might represent a plausible mechanism for tissue damage and skin itching following SM exposure. Therefore, variation of ILs may also contribute to skin pruritus induced by SM.
Nabavi S.M.,Baqiyatallah Medical Sciences University
Current pharmaceutical biotechnology | Year: 2015
Atherosclerosis is a multifactorial disease mainly caused by deposition of low-density lipoprotein (LD) cholesterol in macrophages of arterial walls. Atherosclerosis leads to heart attacks as well as stroke. Epidemiological studies showed that there is an inverse correlation between fruit and vegetable consumption and the risk of atherosclerosis. The promising effect of high vegetable and fruit containing diet on atherosclerosis is approved by several experimental studies on isolated phytochemicals such as flavonoids. Flavonoids are known to up-regulate endogenous antioxidant system, suppress oxidative and nitrosative stress, decrease macrophage oxidative stress through cellular oxygenase inhibition as well as interaction with several signal transduction pathways and from these ways, have therapeutic effects against atherosclerosis. Naringenin is a well known flavonoid belonging to the chemical class of flavanones. It is especially abundant in citrus fruits, especially grapefruits. A plethora of evidences ascribes to naringenin antiatherosclerotic effects. Naringenin abilities to decrease LDL and triglycerides as well as inhibit glucose uptake; increase high-density lipoprotein (HDL); co-oxidation of NADH; suppress protein oxidation; protect against intercellular adhesion molecule-1(ICAM-1); suppress macrophage inflammation; inhibit leukotriene B4, monocyte adhesion and foam cell formation; induce of HO-1 and G 0/G 1 cell cycle arrest in vascular smooth muscle cells (VSMC) and down regulate atherosclerosis related genes are believed to have crucial role in the promising role against atherosclerosis. In the present review, we have summarized the available literature data on the anti-atherosclerotic effects of naringenin and its possible mechanisms of action.